package com.stu.mall.product.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.stu.mall.common.utils.PageUtils;
import com.stu.mall.common.utils.Query;
import com.stu.mall.product.entity.AttrAttrgroupRelationEntity;
import com.stu.mall.product.entity.AttrEntity;
import com.stu.mall.product.service.AttrAttrgroupRelationService;
import com.stu.mall.product.service.AttrService;
import com.stu.mall.product.vo.AttrGroupRelationVo;
import com.stu.mall.product.vo.AttrGroupWithAttrsVo;
import com.stu.mall.product.vo.SkuItemVo;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;


import com.stu.mall.product.dao.AttrGroupDao;
import com.stu.mall.product.entity.AttrGroupEntity;
import com.stu.mall.product.service.AttrGroupService;
import org.springframework.util.StringUtils;


@Service("attrGroupService")
public class AttrGroupServiceImpl extends ServiceImpl<AttrGroupDao, AttrGroupEntity> implements AttrGroupService {

    @Autowired
    private AttrAttrgroupRelationService attrAttrgroupRelationService;

    @Autowired
    private AttrService attrService;

    @Override
    public PageUtils queryPage(Map<String, Object> params, Long catelogId) {

        String key = (String) params.get("key");
        //select * from pms_attr_group where catelog_id=? and (attr_group_id=key or attr_group_name like %key%)
        LambdaQueryWrapper<AttrGroupEntity> wrapper = new LambdaQueryWrapper<AttrGroupEntity>();
        if (!StringUtils.isEmpty(key)) {
            wrapper.and(obj -> {
                obj.eq(AttrGroupEntity::getAttrGroupId, key).or().like(AttrGroupEntity::getAttrGroupName, key);
            });
        }
        if (catelogId == 0) {
        } else {
            wrapper.eq(AttrGroupEntity::getCatelogId, catelogId);
        }
        IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params), wrapper);

        return new PageUtils(page);
    }

    @Override
    public void attrRelationDelete(AttrGroupRelationVo[] vos) {
        List<AttrAttrgroupRelationEntity> entities = Arrays.asList(vos).stream().map((item) -> {
            AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
            BeanUtils.copyProperties(item, relationEntity);
            return relationEntity;
        }).collect(Collectors.toList());

        attrAttrgroupRelationService.deleteAttrRelation(entities);
    }

    @Override
    public List<AttrGroupWithAttrsVo> getAttrGroupWithAttrsByCatelogId(Long catelogId) {
        //1、查询分组信息
        List<AttrGroupEntity> attrGroupEntities = this.list(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));

        //2、查询所有属性
        List<AttrGroupWithAttrsVo> collect = attrGroupEntities.stream().map(group -> {
            AttrGroupWithAttrsVo attrsVo = new AttrGroupWithAttrsVo();
            BeanUtils.copyProperties(group, attrsVo);
            List<AttrEntity> attrs = attrService.getRelationAttr(attrsVo.getAttrGroupId());
            attrsVo.setAttrs(attrs);
            return attrsVo;
        }).collect(Collectors.toList());

        return collect;
    }

    @Override
    public List<SkuItemVo.SpuItemAttrGroupVo> getAttrGroupWithAttrsBySpuId(Long spuId, Long catalogId) {
        //1、查出当前spu对应的所有属性的分组信息以及当前分组下的所有属性对应的值
        AttrGroupDao baseMapper = this.getBaseMapper();
        List<SkuItemVo.SpuItemAttrGroupVo> vos = baseMapper.getAttrGroupWithAttrsBySpuId(spuId, catalogId);

        return vos;
    }
}
